2010 JAGUAR XFR coolant pump

inlet duct downstream of the blower, where any heat generated during operation is dissipated by the air flow.

Auxiliary Coolant Pump

On all vehicles except 3.0L, an auxiliary coolant pump is installed on the rear right side of the radiator housing, in the return
line from the heater core. The auxiliary coolant pump is an electric pump that boosts the flow of coolant through the heater
core.

Ventilation Outlets

The ventilation outlets allow the free flow of air through the passenger compartment. The outlets are installed in the LH and
RH rear quarter panels, below the rear lamps. Each ventilation outlet consists of a grille covered by a soft rubber flap, and is
effectively a non-return valve. The flaps open and close automatically depending on the pressure differential between the air
inside and outside the vehicle.

Published: 11-May-2011
Climate Control - Control Components - System Operation and Component Description
Description and Operation

Control Diagram

NOTE: A = Hardwired; N = Medium speed CAN (controller area network) bus; O = LIN (local interconnect network) bus; P
= Media orientated system transport (MOST) ring.



Item Description 1 Battery 2 BJB (battery junction box) 3 CJB (central junction box) 4 Auxiliary coolant pump Comments:
All except 3.0L vehicles; 5.0L version shown, 3.0L diesel version similar.

Auxiliary Climate Control - Auxiliary Coolant Flow Pump
Removal and Installation

Removal Published: 11-May-2011


1. WARNING: Do not work on or under a vehicle supported only by a jack.
Always support the vehicle on safety stands.
Raise and support the vehicle.

2. Refer to: Air Deflector (501-02, Removal and Installation).

3.















4.
lose.
















5.
lose.
NOTE: Clamp the coolant hose to minimize coolant

















NOTE: Clamp the coolant hose to minimize coolant

DTC Description Possible Cause Action B1D2711
Heater Coolant
Pump
Heater coolant pump control
circuit - short to ground Carry out any pinpoint tests associated with this DTC
using the manufacturer approved diagnostic system.
Refer to the electrical circuit diagrams and check heater
coolant pump control circuit for short to ground B1D2713
Heater Coolant
Pump
Heater coolant pump control
circuit - open circuit Carry out any pinpoint tests associated with this DTC
using the manufacturer approved diagnostic system.
Refer to the electrical circuit diagrams and check heater
coolant pump control circuit for open circuit B1D9796 Tilt Sensor
Component internal failure Suspect the battery backed sounder, check and install a
new battery backed sounder as required P057112
Brake Switch A
Circuit
Footbrake switch circuit - short
to power Refer to the electrical circuit diagrams and check
footbrake switch circuit for short to power P080111
Reverse Inhibit
Control Circuit
Electrochromic rear view mirror,
reverse inhibit circuit - short to
ground Carry out any pinpoint tests associated with this DTC
using the manufacturer approved diagnostic system.
Refer to the electrical circuit diagrams and check
electrochromic rear view mirror, reverse inhibit circuit for
short to ground P080112
Reverse Inhibit
Control Circuit
Electrochromic rear view mirror,
reverse inhibit circuit - short to
power Refer to the electrical circuit diagrams and check
electrochromic rear view mirror, reverse inhibit circuit for
short to power P080113
Reverse Inhibit
Control Circuit
Electrochromic rear view mirror,
reverse inhibit circuit - open
circuit Refer to the electrical circuit diagrams and check
electrochromic rear view mirror, reverse inhibit circuit for
open circuit P085013
Park/Neutral Switch
Input Circuit
Park/Neutral signal circuit -
open circuit Refer to the electrical circuit diagrams and check
Park/Neutral signal circuit for open circuit P162413 Anti-theft System
RJB anti-theft signal circuit -
open circuit Refer to the electrical circuit diagrams and check RJB
anti-theft signal circuit for open circuit P254F13
Engine Hood Switch
Circuit/Open
Hood ajar switch signal circuit -
open circuit Refer to the electrical circuit diagrams and check hood
ajar switch signal circuit for open circuit U001988
Low Speed CAN
Communication Bus
Bus OFF Carry out any pinpoint tests associated with this DTC
using the manufacturer approved diagnostic system. U014200
Lost
Communication
With Body Control
Module "B"
No sub type information Carry out any pinpoint tests associated with this DTC
using the manufacturer approved diagnostic system. U015500
Lost
Communication
With Instrument
Panel Cluster (IPC)
Control Module
No sub type information Carry out any pinpoint tests associated with this DTC
using the manufacturer approved diagnostic system. U015600
Lost
Communication
With Information
Center "A"
No sub type information Carry out any pinpoint tests associated with this DTC
using the manufacturer approved diagnostic system. U016400
Lost
Communication
With HVAC Control
Module
No sub type information Carry out any pinpoint tests associated with this DTC
using the manufacturer approved diagnostic system. U016800
Lost
Communication
With Vehicle
Security Control
Module
No sub type information Check power and ground supplies to vehicle security
module U019900
Lost
Communication
With "Door Control
Module A"
No sub type information Carry out any pinpoint tests associated with this DTC
using the manufacturer approved diagnostic system. U020000
Lost
Communication
With "Door Control
Module B"
No sub type information Carry out any pinpoint tests associated with this DTC
using the manufacturer approved diagnostic system.